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交换一个整数二进制表示中的奇数位和偶数位
题目原文:写程序交换一个整数二进制表示中的奇数位和偶数位,用尽可能少的代码实现。 (比如,第0位和第1位交换,第2位和第3位交换…)解答这道题目比较简单。分别将这个整数的奇数位和偶数位提取出来,然后移位取或即可。代码如下:int swap_bits(int x){ return ((x & 0...
分类:其他好文   时间:2015-04-22 22:01:00    阅读次数:186
UVA 12063 Zeros and Ones (数位dp)
Binary numbers and their pattern of bits are always very interesting to computer programmers. In this problem you need to count the number of positive...
分类:其他好文   时间:2015-04-22 00:13:50    阅读次数:287
Leetcode: Reverse Bits
题目: Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 001110010...
分类:其他好文   时间:2015-04-21 11:11:36    阅读次数:128
LeetCode89/60 Gray Code/Permutation Sequence--迭代
一:Leetcode 89 Gray Code 题目:The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total number of bits in ...
分类:其他好文   时间:2015-04-20 17:10:42    阅读次数:148
Reverse Bits
Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ...
分类:其他好文   时间:2015-04-20 11:01:21    阅读次数:128
Leetcode Bitwise AND of Numbers Range
题目地址:https://leetcode.com/problems/bitwise-and-of-numbers-range/题目解析:参考https://leetcode.com/problems/number-of-1-bits/,我们知道n&n-1为n和n-1两者左边相同的部分,那么容易得到...
分类:其他好文   时间:2015-04-19 01:05:03    阅读次数:316
LeetCode (11) Number of 1 Bits
题目描述Write a function that takes an unsigned integer and returns the number of ’1’ bits it has (also known as the Hamming weight).For example, the 32-bit integer ’11’ has binary representation 000000000...
分类:其他好文   时间:2015-04-18 22:02:38    阅读次数:128
IOS使用SDWebImage出现unsupported parameter combination警告的解决方案
IOS使用SDWebImage出现下列类似警告的解决方案 CGBitmapContextCreate: unsupported parameter combination: 16 integer bits/component; 64 bits/pixel; 3-component color space; kCGImageAlphaPremultipliedF...
分类:移动开发   时间:2015-04-18 19:19:44    阅读次数:146
LeetCode - Number of 1 Bits
Number of 1 Bits2015.4.17 05:48Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as theHamming wei...
分类:其他好文   时间:2015-04-17 07:10:13    阅读次数:120
LeetCode - Reverse Bits
Reverse Bits2015.4.17 05:42Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as000000101001010...
分类:其他好文   时间:2015-04-17 07:09:09    阅读次数:108
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